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Which type of barometer is most commonly used today?
Mercury barometers and aneroid barometers are the most commonly used types today. Mercury barometers use a column of mercury to measure atmospheric pressure, while aneroid barometers use a small, flexible metal box to detect changes in pressure.
What you can use instead of mercury?
Instead of mercury, you can use alternative materials like digital thermometers instead of mercury thermometers for temperature measurement. In addition, you can opt for alternatives such as lead-free solder in electronics and non-mercury batteries for environmental-friendly options.
When did they stop using mercury for mouth fillings?
The use of mercury in dental fillings, specifically amalgam fillings, is still common practice today. While there are ongoing debates and concerns regarding its safety, many dental professionals and organizations maintain that amalgam fillings are safe and effective for restoring teeth.
Why use Mercury in thermometers?
Thermometers used to have Mercury in them because it is very temperature reactive and a liquid across most temperatures measured in everyday life. However, this practice has been discontinued due to the health risks associated with contact with mercury from broken thermometers; most analog thermometers today use colored ethanol as the measuring fluid.
What colour are coins made from copper alloys?
Cupronickel or copper-nickel or "cupernickel" is an alloy of copper that contains nickel and strengthening elements, such as iron and manganese.
What did Lydians invent that we use today?
Lydians have invented coins, in which we still use today. In fact, they were the first to mint(make) coins.
What did the Lydians invent that we use today?
Lydians have invented coins, in which we still use today. In fact, they were the first to mint(make) coins.
What are the coins and money used today?
there money they use today is called euro
Which series of coins are presently in use?
Today in 2012 the series of coin that we presently use is the contemporary coins where coins are made up of copper+nickel (cupro-nickel alloy).
What are some of the ancient rome tools that you use today?
weapons weapons and coins
What are some uses for iron?
It is used as a metal, and it is used in the coins we use today.
What years were nickel coins used?
People in the US have been using nickel coins since 1866 (still in use today).
When were Mercury dimes made?
1916 to 1945. The coins were supposed to be called Liberty dimes but the winged cap on Liberty's head made her look like the Greek god Mercury. They were almost immediately nicknamed Mercury dimes and that's what they're called today.
How much is a 1935 US dime?
1935 Mercury Head dimes are common date coins. Most are only valued for the silver. Today it's $1.32.
Who is depicted on the mercury head coins?
Lady Liberty
How much is a 1943S mercury dime worth?
1943-S is a very common date Mercury Head dime. Most coins of this type have seen heavy use and show a lot of wear. Circulated coins are $3.00-$5.00. Values are a market average and only for coins in collectible condition, coins that are bent, corroded, scratched or have been cleaned have far less value if any to a collector or dealer.
Which type of barometer is most commonly used today?
Mercury barometers and aneroid barometers are the most commonly used types today. Mercury barometers use a column of mercury to measure atmospheric pressure, while aneroid barometers use a small, flexible metal box to detect changes in pressure.
